期刊
ADVANCED MATERIALS TECHNOLOGIES
卷 4, 期 7, 页码 -出版社
WILEY
DOI: 10.1002/admt.201800708
关键词
energy harvesting; polymer thermoelectrics; power generators; printed devices; wearable electronics
资金
- Qatar Foundation's Women in Science (WIS) Fellowship
- Qatar Foundation's Qatar Research Leadership Program (QRLP) Fellowship
- DoD's National Defense Science and Engineering Graduate (NDSEG) Fellowship [32 CFR 168a]
Integrating thermoelectric generators (TEGs) into textiles is attractive for body heat harvesting to power wearable electronics. Textile-integrated TEGs have the advantage of conformity to the body that ensures efficient heat transfer and does not impede movement. Additive printing techniques and solution processable polymer-based thermoelectric (TE) materials can be used for this purpose. However, a number of fabrication challenges limit the realization of a printed polymer-based textile TEG using a low cost, scalable, and textile compatible process. In this work, stencil and transfer printing techniques are successfully employed to fabricate a 32-leg device with a modest fill factor (approximate to 30%) on a commercial sports fabric substrate. PEDOT:PSS and Poly[Na(NiETT)] are formulated into inks and used as the p-type and the n-type polymer materials, respectively. The textile-integrated TE device yields an open circuit voltage of approximate to 3 mV at Delta T = 3 K. The fabrication process is scaled up to demonstrate an 864-leg device that yields a voltage output of approximate to 47 mV. This work is the first demonstration of a textile TEG based on p- and n-type conducting polymers capable of through-plane body heat harvesting. It serves as a proof-of-concept for integrating TE devices into mainstream fabrics and clothing.
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